Zinc PCA ek zinc salt hai jo pyrrolidone carboxylic acid se banta hai. Isse oily skin mein excess sebum control hota hai aur skin ko hydration bhi milti hai. Ismein antimicrobial properties bhi hoti hain jo acne-prone skin ke liye accha hai. Zyada tar oily aur acne-prone skin wale logo ke liye banaye gaye products mein iska use hota hai.